Support all TF built-in functions

[pgavlin]

The complete list is here; function-by-function status is below.

• abs(float)
• basename(path)
• base64decode(string)
• base64encode(string)
• base64gzip(string)
• base64sha256(string)
• base64sha512(string)
• bcrypt(password, cost)
• pulumi/tf2pulumi#263
• chomp(string)
• chunklist(list, size)
• cidrhost(iprange, hostnum)
• cidrnetmask(iprange)
• cidrsubnet(iprange, newbits, netnum)
• coalesce(string1, string2, ...)
• coalescelist(list1, list2, ...)
• compact(list)
• concat(list1, list2, ...)
• contains(list, element)
• dirname(path)
• distinct(list)
• element(list, index)
• file(path)
• floor(float)
• flatten(list of lists)
• format(format, args, ...)
• formatlist(format, args, ...)
• indent(numspaces, string)
• index(list, elem)
• join(delim, list)
• jsondecode(value)
• jsonencode(value)
• keys(map)
• length(list)
• list(items, ...)
• log(x, base)
• lookup(map, key, [default])
• lower(string)
• map(key, value, ...)
• matchkeys(values, keys, searchset)
• max(float1, float2, ...)
• merge(map1, map2, ...)
• min(float1, float2, ...)
• md5(string)
• pathexpand(string)
• pow(x, y)
• replace(string, search, replace)
• rsadecrypt(string, key)
• sha1(string)
• sha256(string)
• sha512(string)
• signum(integer)
• slice(list, from, to)
• sort(list)
• split(delim, string)
• substr(string, offset, length)
• timestamp()
• timeadd(time, duration)
• title(string)
• tobool(any)
• transpose(map)
• trimspace(string)
• upper(string)
• urlencode(string)
• uuid()
• values(map)
• zipmap(list, list)

[joeduffy]

Ideally we'd start using @jen20's new @pulumi/terraform package for all of these.

[markfickett]

I just installed pulumi (shell install) and tf2pulumi (binary for linux x64), and got an error in a Python project saying "unknown function 'base64decode'". I see its status is supported here, however. First time trying to use either Pulumi or tf2pulumi.

[pbarker]

Whats the status here? This makes it pretty hard to use Terraform modules

[Nezteb]

Whats the status here? This makes it pretty hard to use Terraform modules

@pbarker This issue and https://github.com/pulumi/tf2pulumi/issues/239 are pretty tightly related. I made a comment on pulumi/tf2pulumi#239 suggesting some stopgap options for explaining these unsupported pieces of Terraform to new users who are trying to migrate to Pulumi.

[Frassle]

See https://github.com/pulumi/pulumi-terraform-bridge/blob/master/scripts/generate_builtins.py for an update to date tested list of supported functions.

[t0yv0]

One more prospect asking about this today (per Rob Smith).

[brandonpollack23]

we've made quite a bit of progress here recently in preparation for a small announcment, I'd say we're at 90%

For anyone who has found this and are wondering if their program is convertible:

We're quite close to making even many top modules from the Terraform ecosystem.

Right now our next big push will be getting more use cases of the TF try function working after conversion.